BENGALURU, Jan 25 (Reuters) - Indian stocks opened lower on Wednesday on weak economic data from the United States that hinted at a possible recession, and downbeat growth outlook from companies.

The Nifty 50 index was down 0.39% at 18,047.50 as of 9:25 a.m. IST, while the S&P BSE Sensex fell 0.32% to 60,783.21.

Most of the major sectoral indexes declined with the high-weightage financials and information technology losing 0.6% and 0.4%, respectively.

Auto stocks advanced 0.2% on the back of strong third-quarter

earnings

from Maruti Suzuki, and ahead of the results from Tata Motors and Bajaj Auto, scheduled to be reported later in the day.

Thirty-seven of the Nifty 50 constituents declined, with Adani Ports and Adani Enterprises among the top losers.

The slide comes after

short-seller Hindenburg Research

said it holds short positions in the Adani Group companies through U.S.-traded bonds and non-Indian-traded derivative instruments, and flagged risks to the financials of key companies.

"Key listed Adani companies have also taken on substantial debt, including pledging shares of their inflated stock for loans, putting the entire group on precarious financial footing," Hindenburg said.

Overnight, the S&P Global's Flash Composite Output index in the U.S. rose to 46.6 in December, official data showed. A reading below 50 indicates a contraction in business activity, signalling the possibility of a near-term recession in the world's largest economy.

Wall Street equities ended mostly lower with S&P 500 and Nasdaq Composite logging losses. ($1 = 81.6130 Indian rupees) (Reporting by Bharath Rajeswaran; Editing by Janane Venkatraman and Eileen Soreng)